More from Big Brain Labs
brb. is one of a few quiet tools we make.
Big Brain Labs builds small, focused classroom apps for real teachers. brb. is our first commercial product. The rest live at our home site.
brb. is the touchless way for students to sign in and out of your room. They wave at the kiosk, scan a QR card, or tap — pick a reason, and you get a tidy log of who left, when, and why. No shared pens, no lost paper, no clipboard chaos.
Wooden passes. Lanyards. Sign-out sheets passed around the room. The same pen and clipboard touched by every kid, every period, every day. You know exactly which clipboard we mean.
One shared pen, one clipboard, one wooden pass — touched by every student, every period, every day. Cold and flu season makes that math worse. Most teachers stopped thinking about it years ago.
Sign-out sheets get scribbled on, ripped, lost. Students forget to come back. The clipboard becomes illegible by Wednesday. There's no real record of who's where, when — just a vague memory at the end of the day.
Students leave the room and you have nothing to show for it. If something happens in the hallway, "I think Maya left around 10:15" isn't an answer. You deserve a record. So do they.
brb. is cleaner, faster, and accountable — without making a single thing harder for you.
Set brb. up on an iPad or laptop near the door. Open the page in any browser. That's the whole installation.
The student walks up and waves over the green Sign Out circle, taps it, or holds a printed QR card to the camera. brb.'s camera handles all three. No shared touchscreen required.
Student picks bathroom, water, nurse, or another reason. brb. counts down 3, 2, 1 and takes a photo with the time stamped on it. The whole thing takes 6 seconds.
Their face appears in your kiosk's queue. When they return, they tap their face pin and sign back in. You get a complete pass record — out time, in time, reason, photo.
brb. runs in any modern web browser — no app store, no installation. Set it up on whatever you already have at the door.
The most popular setup. Mount one near the door and you're done. Safari works perfectly.
Works great on the school-issued Chromebooks you probably already have. Chrome browser, no extra steps.
Mac, Windows, anything with a webcam. Open the browser, sign in, you're running.
Got a teacher computer with a webcam? brb. runs there too. Plug-in webcams work fine.
Built for the way teachers actually need to track who's out — quick, glanceable, hands-free.
MediaPipe hand tracking lets students sign out without touching the device. Tap or click works too — it's just options, not requirements. No shared touchscreen to clean, no lost styluses, nothing to pass between 30 kids.
Print a numbered set of laminated QR cards. Students hold their card to the camera, pick a reason, and they're out.
Every sign-out captures a time-stamped photo. Searchable gallery. 30-day auto-deletion built in.
Kiosk locks after your chosen idle time, when you switch tabs, or at the end of the school day. Student photos stay behind a password.
Switch periods with a tap, or set a schedule and let brb. switch automatically. Separate rosters, galleries, and pass logs per class.
Sign two students out as a pair — both faces appear in the queue, signed in together.
A separate substitute password gives subs the action buttons without exposing your settings or gallery.
Mark students whose frequent trips shouldn't flag — invisible to other students. Discreet by design.
See who's leaving the most. Export pass records as CSV for admin reports, parent conferences, or your own peace of mind.
Most ed-tech tools talk about privacy. brb. is built around it. Student names, photos, and pass records live entirely in your browser's local storage — on the device running brb. They never reach our servers, never sync to the cloud, never become a dataset somewhere.
Try monthly if you're not sure. Save with annual if you are. Lock in lifetime access if you want to support brb. as a founding teacher. Either way: 14-day free trial, cancel anytime, full refund within 14 days.
Big Brain Labs builds small, focused classroom apps for real teachers. brb. is our first commercial product. The rest live at our home site.
Two weeks of full access. No credit card. No corporate signup form. Just sign in with Google and you're running.
Start your free trial